Olivier Krief wrote:
2006/4/18, Doug Lytle <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>:
Thank you very much for the explaination.
1. Does using iaxmodem imply that, for example, incoming fax calls are
processed that way ?
- PSTN calls are terminated on TDM board (Digium, Sangoma, ...)
- the media flow (G711 as it comes from PSTN) is forwarded without any
modification to the right instance of iaxmodem software process
I'm using SLIN, but ulaw/alaw would be acceptable.
- iaxmodem process are "managed" by hylafax application but are seen
and identified by Asterisk as IAX softphones (during above mentioned
registration)
- media is processed once, according hylafax config (that often means
forwarded to printer or email), after a single "move" from TDM board
to server processor through PCI bus
On incoming, I'm using a macro to handle all 23 lines.
exten => _50XX,1,Macro(faxreceive,${EXTEN}, ${CALLERIDNUM})
[macro-faxreceive]
exten => s,1,Dial(IAX2/iaxmodem.com01/${ARG1})
exten => s,n,Dial(IAX2/iaxmodem.com02/${ARG1})
exten => s,n,Dial(IAX2/iaxmodem.com03/${ARG1})
exten => s,n,Dial(IAX2/iaxmodem.com04/${ARG1})
exten => s,n,Dial(IAX2/iaxmodem.com05/${ARG1})
exten => s,n,Dial(IAX2/iaxmodem.com06/${ARG1})
exten => s,n,Dial(IAX2/iaxmodem.com07/${ARG1})
exten => s,n,Dial(IAX2/iaxmodem.com08/${ARG1})
If the first modem is busy, jump to the next. If all are busy, then
play a busy signal and hang up.
2. If it's correct, fax speeds and protocols (V29, G3, ...) are
defined by hylafax and iaxmodem
Yes. The iaxmodem configuration files specify the protocols and speeds
allowed. I have mine fixed at 9600. I'm not sure about G3 though.
.
So, how do hylafax-iaxmodem speeds and protocols compare with those
from a standard fax machine ?
I mean, if you had bought a new fax machine and had it connected to
the PSTN, would you get a different set of speeds and protocols ?
Don't know, never tested. I don't have experience with our current fax
hardware.
3. How do iaxmodem and rxfax-txfax DSP functions compare ? Are they
using the same library ? Is there any standard allowing iaxmodem or
rxfax-txfax to benefit from hardware DSP inside TDM board ?
As far as I know, iaxmodem uses SpanDSP, so they should be identical.
Lee would be the one to answer technical questions.
4. How would that scale ? Up to 30 Calls ? Are incoming or outgoing
faxes more demanding ? Any hardware recommended ?
I've been focusing on incoming, but this weekend I will be setting up a
few more work stations to help on the outgoing testing.
Doug
-- Ben Franklin quote: "Those who would give up Essential Liberty to
purchase a little Temporary Safety, deserve neither Liberty nor Safety."
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
Asterisk-Users mailing list
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
